Los Angeles Chargers wide receiver Quentin Johnston was carted off the field following a big hit on the opening series of the team's preseason game against the Los Angeles Rams on Saturday evening.

Jim Harbaugh talks about the concussion receiver Quentin Johnston sustained in the Chargers' preseason loss to the Rams.

Harbaugh confirmed the diagnosis after the game at his media availability and said that Johnston was talking, remembered the play, and was moving well.